Oh, Sarah! I admire you so much for training for a marathon! I ran every day (only a mile or two) for ten years, and I LOVED it! Apart from the pain , I felt absolutely euphoric when I ran!
Have you thought of going back to Phase I for a week? Just to give yourself a bit of a jumpstart?

__________________I am a runner!
__________"Wouldn't it be wonderful to take all the evil people and put them over there, then we wouldn't have to deal with them. And all of us good people would stay right here. The problem is that the line separating good and evil cuts right through the human heart." Alexander Solzenitzen